There are some amazing historic maps.
Point depot: http://maps.osi.ie/publicviewer/#V1,717943,734617,7,9
LNW&R north wall station: http://maps.osi.ie/publicviewer/#V1,717264,734696,7,9
Amiens Street: http://maps.osi.ie/publicviewer/#V1,716837,735140,7,9